00001
00020
00021
00022
00023
00024
00025
00026
00027
00028
00029
00030
00031
00032
00033
00034
00035
00036
00037
00038
00039
00040
00041
00042
00043
00044
00045
00046
00047
00048
00049
00050
00051
00052
00053 #include "conf_usb.h"
00054
00055
00056 #if USB_DEVICE_FEATURE == ENABLED
00057
00058 #include "compiler.h"
00059 #ifdef FREERTOS_USED
00060 #include "FreeRTOS.h"
00061 #include "task.h"
00062 #endif
00063 #include "usb_drv.h"
00064 #include "usb_task.h"
00065 #include "usb_descriptors.h"
00066 #include "usb_standard_request.h"
00067 #include "usb_device_task.h"
00068
00069
00070
00071
00072
00073
00074
00080 volatile Bool usb_connected;
00081
00082 #ifdef FREERTOS_USED
00084 xTaskHandle usb_device_tsk = NULL;
00085 #endif
00086
00087
00088
00089
00097 void usb_device_task_init(void)
00098 {
00099 usb_connected = FALSE;
00100 usb_configuration_nb = 0;
00102
00103
00104 Disable_global_interrupt();
00105 Usb_disable();
00106 (void)Is_usb_enabled();
00107 Enable_global_interrupt();
00108 Usb_disable_otg_pad();
00109 Usb_enable_otg_pad();
00110 Usb_enable();
00111 #if UC3A3
00112 Set_bits(AVR32_USBB_udcon, (3<<10));
00113 # warning Force UC3A3 USB macro to work in Full-Speed.
00114 #endif
00115 Usb_unfreeze_clock();
00116 (void)Is_usb_clock_frozen();
00117 Usb_ack_suspend();
00118 Usb_enable_vbus_interrupt();
00119 Enable_global_interrupt();
00120
00121 #ifdef FREERTOS_USED
00122 xTaskCreate(usb_device_task,
00123 configTSK_USB_DEV_NAME,
00124 configTSK_USB_DEV_STACK_SIZE,
00125 NULL,
00126 configTSK_USB_DEV_PRIORITY,
00127 &usb_device_tsk);
00128 #endif // FREERTOS_USED
00129 }
00130
00131
00141 void usb_start_device(void)
00142 {
00143 Usb_enable_suspend_interrupt();
00144 Usb_enable_reset_interrupt();
00145
00146 #if (USB_HIGH_SPEED_SUPPORT==DISABLED)
00147 Usb_force_full_speed_mode();
00148 #else
00149 Usb_use_dual_speed_mode();
00150 #endif
00151
00152 usb_init_device();
00153 Usb_attach();
00154 usb_connected = TRUE;
00155 }
00156
00157
00166 #ifdef FREERTOS_USED
00167 void usb_device_task(void *pvParameters)
00168 #else
00169 void usb_device_task(void)
00170 #endif
00171 {
00172 #ifdef FREERTOS_USED
00173 portTickType xLastWakeTime;
00174
00175 xLastWakeTime = xTaskGetTickCount();
00176 while (TRUE)
00177 {
00178 vTaskDelayUntil(&xLastWakeTime, configTSK_USB_DEV_PERIOD);
00179
00180 #endif // FREERTOS_USED
00181 if (!usb_connected && Is_usb_vbus_high())
00182 {
00183 usb_start_device();
00184 Usb_send_event(EVT_USB_POWERED);
00185 Usb_vbus_on_action();
00186 }
00187
00188 if (Is_usb_event(EVT_USB_RESET))
00189 {
00190 Usb_ack_event(EVT_USB_RESET);
00191 Usb_reset_endpoint(EP_CONTROL);
00192 usb_configuration_nb = 0;
00193 }
00194
00195
00196 if (Is_usb_setup_received())
00197 {
00198 usb_process_request();
00199 }
00200 #ifdef FREERTOS_USED
00201 }
00202 #endif
00203 }
00204
00205
00206 #endif // USB_DEVICE_FEATURE == ENABLED